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The LB 20-X AC is the autocannon with the largest bore that is capable of firing LB-X cluster rounds. Its slug round can deal a devastating 20 points of damage to any one location, while its shotgun-like cluster munitions deliver 20 different projectiles to its target, an effect that can be described as similar to a sandblasting. Unlike the lighter-bore LB-X autocannon, the battlefield specs of the 20-class are identical between the Inner Sphere and Clan versions, the only differences being in size and weight. The cluster munitions also make it easier to hit and acts as flak, making it lethal versus VTOLs. In addition, like other 20-class autocannon, the LB 20-X AC can be split among BattleMech locations.[2]